Abrasive, heavy and insoluble, inorganic grit poses a threat to many of the processes and equipment found in municipal wastewater treatment plants. If not removed, grit can accumulate in aeration basins, digesters, heat exchangers, pipelines and channels. It accelerates wear on mechanical equipment, reducing the service life of pumps, centrifuges, valves and bearings, and increasing the costs of operation and maintenance.
To control these costs, FLSmidth Minerals offers complete range of collection and separation systems for a wide variety of applications and specifically engineered for cost-effective grit removal at the plant headworks. Our grit systems offer simple, reliable and continuous removal with the design flexibility to satisfy virtually any set of influent characteristics and disposal requirements.
Primary grit removal products include the Dorr-Oliver Detritor® and EIMCO® Aerated Grit Chamber with non-clog diffusers. Each can be fitted with integral grit washing classifiers of the rake or screw type. Secondary grit removal devices include rake and screw classifiers with integral Dorrclone hydroclone for efficient grit concentration and washing. The Dorr-Oliver ODS® grit pump offers years of trouble-free operation in abrasive, corrosive environments. FLSmidth Minerals specializes in retrofits for existing grit removal systems with customized designs for specific process.
Features and Benefits - Efficient separation of grit from organics
- Cost-effective designs
- Low power consumption
- Proven equipment with long track records
- Years of reliable service in the harshest of environments